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环境科学 2010
Ecological Stability on Biological Removal of Iron and Manganese Filter Under Poor Nutritional Conditions
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Abstract:
To supply necessary bacteria and available nutrients,a method of returning backwashing wastewater to the bio-filter for removal of iron and manganese was used.The ecological stability of bio-filter was investigated from 3 aspects: iron and manganese removal efficiency,micro-ecological characteristics and the quantity distribution of dominant bacteria.The results indicated that,the bio-filter held strong anti-shock loading capability,when the system was operated at high filtration rate(10-13.9 m/h) and high ...
